首页 / 百科 / 内容详情 A polymer is a macro-molecule formed by linking many small molecules together. 2022-04-21 5次阅读 macromolecule molecules together A polymer is a macro-molecule formed by linking many small molecules together. A.正确B.错误正确答案：正确 Degree of crystallinity indicates the fraction of crystalline structure or imperfections existing in polymers. In comparison with PE,（）is or are correct. 猜你喜欢